Home / 20,702,743.45-28,568,619.88-11,410,285.21

Finding the Fourth Proportional to 20,702,743.45, 28,568,619.88 and 11,410,285.21

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Solution

The fourth proportional to 20,702,743.45, 28,568,619.88 and 11,410,285.21 is: 15,745,550.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702,743.45 : 28,568,619.88 = 11,410,285.21 : x
  2. Step 2: Convert to fraction form
    20,702,743.45/28,568,619.88 = 11,410,285.21/x
  3. Step 3: Cross multiply
    20,702,743.45x = 28,568,619.88 × 11,410,285.21
  4. Step 4: Simplify right side
    20,702,743.45x = 325,976,100,886,876
  5. Step 5: Solve for x
    x = 325,976,100,886,876/20,702,743.45
  6. Step 6: Final answer
    x = 15,745,550.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.